- * It is possible that the contents of the original resource have changed since the working copy was created, in which case there is
- * an update conflict. This operation allows for two settings to resolve conflict set by the fForce flag:
+ * It is possible that the contents of the original resource have changed since
+ * the working copy was created, in which case there is an update conflict. This
+ * operation allows for two settings to resolve conflict set by the
+ * fForce flag:
*
false- in this case an JavaModelException is throwntrue- in this case the contents of the working copy are applied to the underlying resource
- * even though the working copy was created before a subsequent change in the resourcefalse- in this case an
+ * JavaModelException is throwntrue- in this case the contents of the
+ * working copy are applied to the underlying resource even though the working
+ * copy was created before a subsequent change in the resource
- * The default conflict resolution setting is the force flag is false
+ * The default conflict resolution setting is the force flag is
+ * false
*
- * A JavaModelOperation exception is thrown either if the commit could not be performed or if the new content of the compilation
- * unit violates some Java Model constraint (e.g. if the new package declaration doesn't match the name of the folder containing the
- * compilation unit).
+ * A JavaModelOperation exception is thrown either if the commit could not be
+ * performed or if the new content of the compilation unit violates some Java
+ * Model constraint (e.g. if the new package declaration doesn't match the name
+ * of the folder containing the compilation unit).
*/
public class CommitWorkingCopyOperation extends JavaModelOperation {
- /**
- * Constructs an operation to commit the contents of a working copy to its original compilation unit.
- */
- public CommitWorkingCopyOperation(ICompilationUnit element, boolean force) {
- super(new IJavaElement[] { element }, force);
- }
-
- /**
- * @exception JavaModelException
- * if setting the source of the original compilation unit fails
- */
- protected void executeOperation() throws JavaModelException {
- try {
- beginTask(Util.bind("workingCopy.commit"), 2); //$NON-NLS-1$
- CompilationUnit workingCopy = getCompilationUnit();
- IFile resource = (IFile) workingCopy.getResource();
- ICompilationUnit primary = workingCopy.getPrimary();
- boolean isPrimary = workingCopy.isPrimary();
-
- JavaElementDeltaBuilder deltaBuilder = null;
- // PackageFragmentRoot root = (PackageFragmentRoot)workingCopy.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
- boolean isIncluded = !Util.isExcluded(workingCopy);
- // if (isPrimary || (root.isOnClasspath() && isIncluded && resource.isAccessible() &&
- // Util.isValidCompilationUnitName(workingCopy.getElementName()))) {
- if (isPrimary || (isIncluded && resource.isAccessible() && Util.isValidCompilationUnitName(workingCopy.getElementName()))) {
-
- // force opening so that the delta builder can get the old info
- if (!isPrimary && !primary.isOpen()) {
- primary.open(null);
- }
-
- // creates the delta builder (this remembers the content of the cu) if:
- // - it is not excluded
- // - and it is not a primary or it is a non-consistent primary
- if (isIncluded && (!isPrimary || !workingCopy.isConsistent())) {
- deltaBuilder = new JavaElementDeltaBuilder(primary);
- }
-
- // save the cu
- IBuffer primaryBuffer = primary.getBuffer();
- if (!isPrimary) {
- if (primaryBuffer == null)
- return;
- char[] primaryContents = primaryBuffer.getCharacters();
- boolean hasSaved = false;
- try {
- IBuffer workingCopyBuffer = workingCopy.getBuffer();
- if (workingCopyBuffer == null)
- return;
- primaryBuffer.setContents(workingCopyBuffer.getCharacters());
- primaryBuffer.save(this.progressMonitor, this.force);
- primary.makeConsistent(this);
- hasSaved = true;
- } finally {
- if (!hasSaved) {
- // restore original buffer contents since something went wrong
- primaryBuffer.setContents(primaryContents);
- }
- }
- } else {
- // for a primary working copy no need to set the content of the buffer again
- primaryBuffer.save(this.progressMonitor, this.force);
- primary.makeConsistent(this);
- }
- } else {
- // working copy on cu outside classpath OR resource doesn't exist yet
- String encoding = null;
- try {
- encoding = resource.getCharset();
- } catch (CoreException ce) {
- // use no encoding
- }
- String contents = workingCopy.getSource();
- if (contents == null)
- return;
- try {
- byte[] bytes = encoding == null ? contents.getBytes() : contents.getBytes(encoding);
- ByteArrayInputStream stream = new ByteArrayInputStream(bytes);
- if (resource.exists()) {
- resource.setContents(stream, this.force ? IResource.FORCE | IResource.KEEP_HISTORY : IResource.KEEP_HISTORY, null);
- } else {
- resource.create(stream, this.force, this.progressMonitor);
- }
- } catch (CoreException e) {
- throw new JavaModelException(e);
- } catch (UnsupportedEncodingException e) {
- throw new JavaModelException(e, IJavaModelStatusConstants.IO_EXCEPTION);
- }
-
- }
-
- setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
-
- // make sure working copy is in sync
- workingCopy.updateTimeStamp((CompilationUnit) primary);
- workingCopy.makeConsistent(this);
- worked(1);
-
- // build the deltas
- if (deltaBuilder != null) {
- deltaBuilder.buildDeltas();
-
- // add the deltas to the list of deltas created during this operation
- if (deltaBuilder.delta != null) {
- addDelta(deltaBuilder.delta);
- }
- }
- worked(1);
- } finally {
- done();
- }
- }
-
- /**
- * Returns the compilation unit this operation is working on.
- */
- protected CompilationUnit getCompilationUnit() {
- return (CompilationUnit) getElementToProcess();
- }
-
- protected ISchedulingRule getSchedulingRule() {
- IResource resource = getElementToProcess().getResource();
- IWorkspace workspace = resource.getWorkspace();
- if (resource.exists()) {
- return workspace.getRuleFactory().modifyRule(resource);
- } else {
- return workspace.getRuleFactory().createRule(resource);
- }
- }
-
- /**
- * Possible failures:
- *